EGR VALVE

  • Tiny
  • mikapata
  • Ford F-150

I replaced the EGR Valve on my 99 Ford 150 P/U 4.6l engine. After replacing the valvwe the check engine light is still on and I still get a code P0401. What else do I need to do?

Friday, July 6th, 2007 AT 6:59 PM

3 Answers

  • Tiny
  • jewelllsss
  • Member

If you did not clear out the codes then they will stay stored in the computer, clear them out and see if they come back on.

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Friday, July 6th, 2007 AT 7:03 PM
  • Tiny
  • mikapata
  • Member

I cleared the code and it came back. I did this twice. At the emissons testing center they told me something about a drive time to allow the computer to recognize the new EGR Valve. If the prob was corrected then shouldn't the code stay clear?

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Saturday, July 7th, 2007 AT 11:45 AM
  • Tiny
  • merlin2021
  • Expert
  • 17,583 posts

Take the egr off again and clear the port of carbon all the way to the throttle plate. I use a steel coathangar. Reset the light. If it comes on after this replace the egr position sensor.

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Sunday, July 8th, 2007 AT 8:49 AM

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